goof vs drop the ball

goof is a noun but drop the ball is not a noun.

Word	Noun	Adjective	Verb	Adverb
goof	Yes	No	Yes	No
drop the ball	No	No	Yes	No

As verbs, goof and drop the ball are synonyms defined as:

goof and drop the ball: commit a faux pas or a fault or make a serious mistake

Other synonyms of goof include blunder, boob, sin.

goof (noun)	drop the ball (noun)
a man who is a stupid incompetent fool
a person who amuses others by ridiculous behavior

goof (verb)	drop the ball (verb)
commit a faux pas or a fault or make a serious mistake	commit a faux pas or a fault or make a serious mistake